Hay-press.



PATENTED MAY 21, 1907.

J. CHRISTENSEN.

HAY PRESS- APPLICATION FILED DEU.4,1905.

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PATENTED MAY 21, 1907. -acnmsqrmxsmv.

HAY PRESS. APPLICATION FILED DEO.4,190 5.

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-rw NORRIS PETERS 60., WASHINGTON, 0 c4 JOHN CHRISTENSEN, OF ANN ARBOR, MICHIGAN.

HAY-PRESS.

Specification of Letters Patent.

Patented May 21, 1907'.

Application filed December 4,1905. Serial No- 290,051.

To aZl whom it may concern:

Be it known that 1, JOHN CHRISTENSEN, a citizen of the United States, residing at Ann Arbor, county of Nashtenaw, State of Michigan, have invented a certain new and useful Improvement in Hay-Presses; and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to hay presses; it has for its object improvements in the means employed to pack the hay and arrange it in firm, shapely bales.

In the drawings :Figure 1, is a plan view of the press. Fig. 2, is a cross section at the delivery end taken at the line 22 of Fig. 1, looking toward the delivery end and showing the yoke in elevation. Fig. 3, is a longitudinal section at the delivery end of the feed ing chamber, taken along the line 44 of Fig. 1. Fig. 1, is a longitudinal section along the line 4: 4: of Fig. 1. Fig. 5, is a horizontal section through the feeding chamber. Fig. 6, shows the middle or fulcrum support of the packer arm.

The press is composed of four longitudinal frame timbers 1, 2, 3 and 4, bound together by tie members which at that part of the press that includes the compressing machinery are firmly and rigidly secured to the longitudinal timbers, and at the delivery end of the machine are held to the timbers in a way to allow the longitudinal timbers to yield somewhat or to spring somewhat, and still secure the longitudinal timbers from too great expansion.

The compressing machinery. is at the end A, of the framework and is properlyjournaled in bearings supported by the frame. The compressing machine consists principally of a plunger .5, actuated by a crank wheel 6, which is in its turn actuated by a main driving pulley 7, that is belted to any convenient source of power. Between the shaft of the driving pulley 7 and the shaft of the crank wheel 6, are gears that reduce the speed and increase the compressing force that is finally applied to the plunger head 5. The plunger head is confined by guides 8 bolted to the side timbers and which guides are cast integral with the posts 9 upon which is ivotally supported a saddle 13 and the paral el bar 11 of a packer 12. The walking beam normally rests on the saddle 13; this walking beam is pivoted to the end of a link by which it is connected to the plunger 5. It is also connected to the stem of the packer 12, and actuates the packer. It rocks with and is yieldingly mounted in the saddle to which it is held by a pin 15, that passes through the saddle on a line perpendicular to the normal position of the walking beam and is provided at each end with heads 16 and 17; these heads hold springs 18 and 19, of which the upper spring 18 bears against a plate on the walking beam, and the lower spring .19 bears against the under side of the saddle. Should the packer 12 meet an obstruction in its downward thrust, it causes the beam to compress the s ring 18, and the pin under the pressure 0 the spring 18 to compress the spring 19, thus allowing the walking beam to yield to the full extent of the possible compression of both the springs 18 and 19. One end of the walking beam 10 is connected by a link 20 to the plunger piston just at the rear of the plunger head 5, and the reciprocation of the plunger piston rocks the walking beam, bringing the packer into action at the proper time with respect to the withdrawal of the plungerhead. The packer head is adjustable vertically on the walking beam, and on the parallel bar 11, to which it is pivotally engaged by pivots 121, and 122, which may engage through any of the several holes 123, in the stem of the packer.

To aid in packing the hay into the packing chamber, a rocker plate 22 is pivoted across the frame at the front end of the feed chamher or packing chamber, and at the upper side thereof. The material in the packing chamber catches the under lip 23, of this and forces it downward and forward causing it to rock on its journals, and the rocker thus actuated tucks in the ends of the material under treatment; during the rocking move ment the outer surface of the curved plate acts as a pressure roller, and at the termination of its oscillation as a closure to first force down and afterward to hold down into the packing chamber that part of the material which is just in front of the advancing plunger, at the mouth of the packing chamber. A parting board, (which is not shown) is caught by the hooks 24 and 25, which holds the parting board under the strain of springs 26 and 27, until the force of the plunger is sufficient to spread the hooks 24 and 25, and push the parting board beyond them.

bale throughout the entire length of it, but

nut on the bolt is placed a spring, as the At the'delivery end of the machine, in place of the ordinarily constructed form ofthroat, I employ side bars 28, 29, 30 and 31, which press strongly against the side of the which are adapted to yield with a resistance that is determined by the springs 32' and 33, and 34.

In order that there may be this yieldin motion against resistance at the delivery en of the frame, there are placed side posts 36, 37, 38 and 39, which are held tov the longitudinal timbers 1, 2, 3 and 4, by bolts 10 and 41-, which bolts are capable of movement along their own longitudinal axis through the holes througlrwh-ich they engage, and on one end of each bolt, and external! to the frame and between the frame and a holding spring 32, on the bolt 40. Thetension of the spring tends to-hold the posts 37 and 39,,close in against the timbers and even tendsto compress the timbers toward each other; The posts, however, may spread undfer internal pressure against the tension of the sprin s which thus determine the amount of si compression that is given to the bale, and in.- asmuch as there are two pairsof these posts, one at the-front and one at the rear of the delivery chamber, which posts are united by the longitudinal beams 28 and 29, the compression of the bale from end; to end is substantially uniform. The beams 28 and 29 are preferably T-rails of metal of great strength.

The upper and: lower floors of the delivery chamber are lined with sheet metal plates 40 and 411, in the usual way.

What I claim is 1. In a hay press, in combination with a packing head and its stem, a walking beam actuator therefor, a saddle wherein the walking beam rests, a post to which the saddle is pivoted, a pin provided with heads at each end passing through the saddle and the walking beam and provided with springs, one of which engages around said pin above said walking beam, and the other'of which engages around said pin below said saddle, a parallel bar pivoted to said post and to the stem of said packing head whereby said walking ated independently of and without beam is cushioned by the joint action of both of said springs, substantially as described.

2. In a hay press, a tucker consisting of a curved plate pivotally supported by the body portion of the press, with its convex face normally in position to engage against the material advanced by the mechanism of the press, and adapted to prevent with an end of its concave face the recession of the material forced past it, and means attached to the oppositeend of the tucker whereby it is yieldingly held to its normal. position, substantially asd'escribed.

3'. In. a. hay press, in combination with longitudinal frame timbers, a casting having lateral portions within which said timbers engage and which fornr therewith an unbroken track for the plunger, theupper portion of said casting servingas a post on which to journal the packing lever, substantially as described.

4'. En. a hay press, in combination with the frame bars extending longitudinally of the delivery ehanrber, bolts transversing said frame bars and extending across the frame and movable longitudinally along their own axis, posts suspended on said bolts, springs holding said posts in contact with the-frame timbers, bars supported by said posts and forming the side walls of an expansible de 1 livery'chamber, substantially as described 5. In a hay press, in combination with the timbers forming the frame of the delivery chamber, expansible sidewalls, and means whereby said expansible side walls are actuproducing strain on the frame timbers, substantially as described.

6 Ina hay press, in combination with the frame timbersof the delivery chamber thereof, sidewalls movable throtghout their length to: expand said chamber, the said side walls being supported by bolts. carried said frame timbers and which are movable with respect thereto without strain thereon.

In testimony whereof, I sign this specification in the presence of two witnesses.

JOHN CHRISTENSEN. Witnesses: v

C. Oi JENNINGS, WILIIAM M. SWAN. 

